content: /* ===========================================================
   * JFreeChart : a free chart library for the Java(tm) platform
   * ===========================================================
   *
   * (C) Copyright 2000-2013, by Object Refinery Limited and Contributors.
   *
   * Project Info:  http://www.jfree.org/jfreechart/index.html
   *
   * This library is free software; you can redistribute it and/or modify it
   * under the terms of the GNU Lesser General Public License as published by
   * the Free Software Foundation; either version 2.1 of the License, or
   * (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful, but
   * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
   * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
   * License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
   * USA.
   *
   * [Oracle and Java are registered trademarks of Oracle and/or its affiliates. 
   * Other names may be trademarks of their respective owners.]
   *
   * ------------------
   * TestUtilities.java
   * ------------------
   * (C) Copyright 2007-2013, by Object Refinery Limited.
   *
   * Original Author:  David Gilbert (for Object Refinery Limited);
   * Contributor(s):   -;
   *
   * Changes:
   * --------
   * 08-Jun-2007 : Version 1 (DG);
   *
   */
  
  package org.jfree.chart;
  
  import java.io.ByteArrayInputStream;
  import java.io.ByteArrayOutputStream;
  import java.io.IOException;
  import java.io.ObjectInput;
  import java.io.ObjectInputStream;
  import java.io.ObjectOutput;
  import java.io.ObjectOutputStream;
  import java.util.Collection;
  import java.util.Iterator;
  
  /**
   * Some utility methods for use by the testing code.
   */
  public class TestUtilities {
  
      /**
       * Returns <code>true</code> if the collections contains any object that
       * is an instance of the specified class, and <code>false</code> otherwise.
       *
       * @param collection  the collection.
       * @param c  the class.
       *
       * @return A boolean.
       */
      public static boolean containsInstanceOf(Collection collection, Class c) {
          Iterator iterator = collection.iterator();
          while (iterator.hasNext()) {
              Object obj = iterator.next();
              if (obj != null && obj.getClass().equals(c)) {
                  return true;
              }
          }
          return false;
      }
  
      /**
       * Returns an object that is the deserialised form of the supplied object.
       * The original object is serialised to a byte array then deserialised
       * and returned.
       * 
       * @param original  the original object (<code>null</code> not permitted).
       * 
       * @return A serialised and deserialised object.
       */
      public static Object serialised(Object original) {
          Object result = null;
          ByteArrayOutputStream buffer = new ByteArrayOutputStream();
          ObjectOutput out;
          try {
              out = new ObjectOutputStream(buffer);
              out.writeObject(original);
              out.close();
              ObjectInput in = new ObjectInputStream(
                      new ByteArrayInputStream(buffer.toByteArray()));
              result = in.readObject();
              in.close();
          } catch (IOException e) {
              throw new RuntimeException(e);
          } catch (ClassNotFoundException e) {
              throw new RuntimeException(e);
          }
          return result;
      }
  
  }
  